Thread-guide for spinning-machines.



,No. 884,700. V PAIENTED APR. 14, 1908.

F. AMBLER & H. WALLACE. THREAD GUIDE FOR SPINNING MACHINES.

APPLICATION FILED APR. 28, 1906.

2 SHEETS-SHEET 1.

No. 884,700. PATENTED APR. 14,1908.

. I I; AMBLER & H; WALLACE.

THREAD-GUIDE FOR SPINNING MACHINES.

APPLICATION FILED APR. 28, 1906.

2 SHEETSSHEBTI2.

FRED AMBLER, OF BRADFORD,

AND HARRY WALLACE, OF QUEENSBURY, NEAR BRADFORD,

ENGLAND.

THREAD-GUIDE FOR SPINNING-MACHINES.

Specification of Letters Patent.

Patented April 14, 1908.

Application filed April 28, 1906. Serial No. 314,277.

T 0 all whom it may concern:

Be it known that we, FRED AMBLER and HARRY WALLAoE, subjects of the King of Great Britain, and residents, respectively, l of Lynfield, Chellow Dean, Bradford, in the county of York, England, and 38 High street, Queensbury, near Bradford, aforesaid, have invented certain new and useful Improvements in Thread-Guides for Spinning-Miachines, of which the following description, together with the several sheets of drawings, is a specification.

This invention relates to machines for l spinning, doubling and twisting yarns or threads of fibrous substances and more especially to those known as cap frames and our said invention consists in the application and means thereto which are of an improved construction and formation as compared with those hereto employed whereby the ballooning of the threads as they are being wound upon their bobbins or to form cops, is prevented while the stray fibers from said threads are assisted to be wound therein or thereon to produce smoother yarn.

In the accompanying sheets of drawings which are illustrative of our invention:- Figure l is a sectional end elevation of a sufficient portion of a cap frame to illustrate the application thereto of our invention. Fig. 2 is a front elevation of certain of the parts shown by Fig. 1., Figs. 3, 4c and 5 are side, front and plan viewsof our improved device shown in detail and drawn to an enlarged scale as compared with Figs. .1 and 2. Fig. 6 is a front view illustrating a modified form of our improved device.

A represents the end frame of the machine and B the longitudinal rails forming the other part of the framework.

In carrying our invention into effect we make use of shields a (mounted and held against rotation as hereinafter explained) preferably of steel, which we shape or form so as to surround the caps b (shown in broken lines Figs. 1 and 2) of the cap spinning frame shown, so that the threads as they are being produced by such machines are wound upon their bobbins or spools c to form cops, by passing through these shields a, the inner surfaces of which are made smooth and even l throughout for the threads to rub against or contact with in following their respective paths of .motion,

l l l while said shields are surrounding the upper part of the proximity to the thread guides s so that from leaving said guides until reaching the bobbin they are entirely retained within these shields, thus said threads are constrained to follow their said respective paths which are limited by the shields a to a suitable space concentric with the caps b, or with the rings and spindles of a ring spinning machine when they are used in connection with these, and so the ballooning of said threads is prevented.

The inner surfaces of the shields a are prepared by being turned out and polished as in a lathe or by other means so that they are made as accurately cylindrical and smooth as possible in order to present no irregularities to the guiding surfaces for the threads by which means the object desired is attained, whereas such object is not attained when any irregular part occurs ,on the inner surface of the shield as is the case when shields formed in two parts hinged together are employed. As a modification in the shape of our improved shield we may form it with an enlarged central part as shown by Fig. 6, said enlargement being of a shape somewhat conforming to the shape of the path of motion of the thread when ballooning, but made to restrict said ballooning as will be seen. To enable the attachment and detachment of these shields a to and from their bearings f for the purposes well understood, as well as to allow the taking up or repairing of the threads or yarns, we cut a slit or opening g in the walls of said shields a to allow the threads to pass laterally through them, while we have appropriately shaped projecting pieces 72, secured to the outer walls of said shields a to take into or over bearing devices or sockets f fixed to the framework of the machine.

The slits or openings 9 are made spiral or at an angle to the axial centers of, the shields a so that their inner edges are prevented from forming any obstruction to the rotary motions of the threads traveling within them. For the same reason and to facilitate the threading or inserting of the threads through these slits g we have them wider on the outside of the shields a and tapering so as to be narrower on the inside of same.

Such being the nature of our said invention, what we claim is 1. In a cap spinning machine, a shield for spindle formed to reach into comparatively close and having its upper and lower ends of substantially the same diametery said shield havmg a spiral slit or opening in its wall, means for supporting said shield concentrically with said spindle, the inner surface of said shield being made smooth and even throughout to avoid presenting any obstacles to the movements of the thread as the latter rubs against and is guided by it substantially as herein specified.

2. In a cap spinning machine, a. shield for surrounding the upper part of the spindle and having its upper and lower ends of substantially the same diameter, said shield having a spiral slit or opening in its wall, the said s 't or opening being Wider at the exterior of I the shield than at the interior thereof, means for supporting said shield concentrically with said spindle, the inner surface of said shield being made smooth and even throughout to avoid presenting any obstacles to the movements of the thread as the latter rubs against and is guided by it substantially as herein specified.

In testimony whereof we have affixed our signatures'in presence of two witnesses.

FRED AMBLER. HARRY WALLACE. Witnesses:

FRED HAMMOND, SAMUEL HEY. 

